Improvement in plows



S. HALL.

PLOW.

o. 5.529. Patented Apr. 25, 1848.

UNITED STATES PATENT, OFF- ce.

SAMUEL HALL, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN PLOWS.

Specification forming part of Letters Patent No. 5,529, dated April 2:}, 184s To all whom it may concern:

Be it known that I, SAMUEL HALL, ot'Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and Improved Center-Draft Iron Plow; and 1 do here by declare the following to be a full, clear, and

.exact description of the construction and opin all the figrres.

Y Thenature of my invention consists, first, in combining the beam to the body of the plow in such a manner that the draft shall be exerted-at the center of resistance whether the furrow be wide or narrow, deep or shallow, and also enabling the position of-the beam to be so,

' adjusted as to cause the plow to form a deep or a shallow furrow without varying the base or shoe of thesaine from a horizontal position; and, second, in the peculiar manner of uniting a wrought point and cutter to a wrought share without injury to the thinner parts thereof by the process of welding.

a is the mold -board. at is the landside. These are cast in one piece with each other and the cross supporting brace 2. At the junction of the mold-board and laudside, and centrally between the two, a few inches above their lower edges, is cast a socket, p.

g is an ear cast with and projecting from the top of the mold-board,havinga slot,j, through the same. w

dis themetallic beam, either cast or wrought, terminating in a descending curve or hook at its rear end, of the form represented in Figs. 2 and 4. The beam is secured to the body of the plow by inserting the point of the curve at its rear end into the socket pand confi nin g the beam to the ear-g by means of the screw-bolt h passing through the bolt-holc c in the beam and the slotj in the ear. The slotj in the ear 9 affords sutlicieut play to the beam to allow its front end to be raised or lowered and adj ustcd to deep or shallow furrows. The position of the beam is'so adj ustcd as to cause the plow to form awide or a narrow furrow by means ofthe wedge o. By inserting the wedge between the car g and the beam in front or in the rear of the bolt 11' it will readily be perceived that the front end of the beam may be thrown to the right or left, as may be desired,

thereby causing a wide or a narrow furrow to be formed by the plow.

s is an arm projecting from the rear side of the curve of the beam, to which the handlesff are confined by means of the screw-bolts i i passing through the bolt-hole u and the slot at in the arm. By means of the slot a in the arm a thcextremitiesofthe handles can be pre- 7 served at a uniform height as the position of the front end ot'the beam is raised or lowered. The position of the beams can also be adjusted to suit the different height of persons guiding the plow. I

l is a shoe-piece, secured to the base of the landside by means of bolts.

The wrought share and point and cutter I construct and unite as follows:

The share I) and the point and cutter c, I forge rcspectively'of the form represented in Fig. 3. I then place thebuse of the point and cutter upon the beveled edge y of the share, and secure the heel of the point to the share by means of the rivet 7., Fig. 1. I then secure the front portion of the point to the share by welding. A strong and perfect union of these parts is thus accomplished without burn ing orinjuringtheir thin edges. The point and cutter cannot be perfectlyse'cured to the share by the welding process alone,'nor can they be united by the welding process without burning and injuringtheir thin edges.

The share, point, and cutter I shall some times cast-in one piecefrom a pattern corresponding in form with the wrought share, point, and cutter herein described and repre seuted, to be used in light soils.

It will readily be perceived that the beam can be so adjusted as to cause the plow to form a deep or a shallow furrow withoutvarying the base of the plow from a horizontal position, which is a very important feature, as itprevents trembling and vibration and insures a steady movement. The power is applied also at the point where the resistance is the greatest,which 'is another very valuable feature that distinguishes my improved plow from all others.

Having thus fully described the construction I and operation of my improved center-draft iron pl0w,.what I claim therein as new, and desire to secure byLetters Patent, is-- y t,

1. The manner of securing the beam to the body of the plow by means o'fthe curved ter-. minationof the rear end of the beam, the socket 1; between the mold-board and landside, the

ear gproje'eting from the mold-board, with the slot j in the same; and

3. In combination with the method of securg in g the beam to the body of the-plow, theman- .her of combining the handles with the beam by means of the-projecting arm .3, the aperture w and slot n in the some, and the screw-bolts i i, eombinedund: operating with the frontend of the/beam, substantially as herein set forth.

4. The manner of forming and uniting the s'vrought-sharewith the point and cutter by the combinef'tlio stantiallyin the manner and for the purpose herein setforth.

Witnesses:

LEoNARh S. JOHNS, J. 13.; itoisiNsoN.

SAMLQ HALL.

of riveting and welding, sub-v 

